<template>
  <div class="login_container">
    <div class="login_box">
      <div class="avatar_box">
        <img src="../assets/logo.png" />
      </div>

      <div>
        <el-form ref="loginFormRef" :model="loginForm" :rules="loginFormRules" label-width="80px" class="login_form">
          <el-form-item label="用户名:" prop="username">
            <el-input prefix-icon="iconfont icon-user" v-model="loginForm.username"></el-input>
          </el-form-item>
          <el-form-item label="密码:" prop="password">
            <el-input prefix-icon="iconfont icon-3702mima" v-model="loginForm.password"></el-input>
          </el-form-item>
          <el-form-item class="btns">
            <el-button type="primary" @click='login'>登录</el-button>
            <el-button type="info" @click="resetLoginForm">重置</el-button>
          </el-form-item>
        </el-form>
      </div>
    </div>
  </div>
</template>

<script>
export default {
  data () {
    return {
      // 这是登录表单的数据绑定对象
      loginForm: {
        username: 'admin',
        password: '123456'
      },
      // 表单验证规则对象
      loginFormRules: {
        // 验证用户名
        username: [
          { required: true, message: '请输入登录用户名', trigger: 'blur' },
          { min: 5, max: 10, message: '长度在 5 到 10 个字符', trigger: 'blur' }
        ],
        // 验证密码
        password: [
          { required: true, message: '请输入登录密码', trigger: 'blur' }

        ]

      }
    }
  },
  methods: {
    resetLoginForm () {
      this.$refs.loginFormRef.resetFields()
    },
    login () {
      this.$refs.loginFormRef.validate(async validate => {
        if (!validate) return
        const { data: res } = await this.$http.post('login', this.loginForm)
        if (res.meta.status !== 200) this.$message.error('登录失败')
        else { this.$message.success('登录成功') }
        window.sessionStorage.setItem('token', res.data.token)
        this.$router.push('/home')
      })
    }
  }
}
</script>

<style lang="less" scoped>
.login_container {
  background-color: rgb(70, 124, 194);
  height: 100%;
}
.login_box {
  width: 450px;
  height: 300px;
  background-color: #fff;
  border-radius: 3px;
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
}
.avatar_box {
  height: 130px;
  width: 130px;
  border: 1px solid #eee;
  border-radius: 50%;
  padding: 10px;
  box-shadow: 0 0 10px #ddd;
  position: absolute;
  left: 50%;
  transform: translate(-50%, -50%);
  background-color: #fff;
  img {
    height: 100%;
    border-radius: 50%;
    background-color: #eee;
  }
}
.btns {
  display: flex;
  justify-content: flex-end;
}

.login_form {
  position: absolute;
  bottom: 0;
  width: 100%;
  padding: 10px;
  box-sizing: border-box;
}
</style>
